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  2. Photovoltaic system performance - Wikipedia

    en.wikipedia.org/wiki/Photovoltaic_system...

    PV performance can be measured as the ratio of actual solar PV system output vs expected values, the measurement being essential for proper solar PV facility's operation and maintenance. The primary energy input is the global light irradiance in the plane of the solar arrays, and this in turn is a combination of the direct and the diffuse ...

  3. Energy conservation - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation

    An energy audit is an inspection and analysis of energy use and flows for energy conservation in a structure, process, or system intending to reduce energy input without negatively affecting output. Energy audits can determine specific opportunities for energy conservation and efficiency measures as well as determine cost-effective strategies. [2]

  4. Solar tracker - Wikipedia

    en.wikipedia.org/wiki/Solar_tracker

    The effective collection area of a flat-panel solar collector varies with the cosine of the misalignment of the panel with the Sun.. Sunlight has two components: the "direct beam" that carries about 90% of the solar energy [6] [7] and the "diffuse sunlight" that carries the remainder – the diffuse portion is the blue sky on a clear day, and is a larger proportion of the total on cloudy days.

  5. Inspection - Wikipedia

    en.wikipedia.org/wiki/Inspection

    In government and politics, an inspection is the act of a monitoring authority administering an official review of various criteria (such as documents, facilities, records, and any other assets) that are deemed by the authority to be related to the inspection. Inspections are used for the purpose of determining if a body is complying with ...

  6. Preventive maintenance checks and services - Wikipedia

    en.wikipedia.org/wiki/Preventive_Maintenance...

    Preventive maintenance checks and services (PMCS) in the United States Army or preventive maintenance inspections (PMI) in the United States Air Force are the checks, services, and maintenance performed before, during, and after any type of movement or before the use of all types of military equipment.

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  9. Automated optical inspection - Wikipedia

    en.wikipedia.org/wiki/Automated_optical_inspection

    Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew). It is commonly used in the ...

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